I didn't think the bathrobes in Sims 4 were interesting enough, so I made my own.
There are both male and female versions of this bathrobe, plus matching slippers for each. They all have custom tiger print thumbnails in CAS.
The file contains four items: The male and female bathrobes, and the male and female tiger slippers. They are enabled for teen, YA, adult and elder and appear in "Sleepwear." Non-default, so they won't replace anything in your game. You only need to download one of the links, not both. (One is a mirror.)